Finding the Third Proportional to 1,551,408 and 3,290,628

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551,408 : 3,290,628 = 3,290,628 : x
2. Step 2: Convert to fraction form
   1,551,408/3,290,628 = 3,290,628/x
3. Step 3: Cross multiply
   1,551,408x = 3,290,628 × 3,290,628
4. Step 4: Simplify right side
   1,551,408x = 10,828,232,634,384
5. Step 5: Solve for x
   x = 10,828,232,634,384/1,551,408
6. Step 6: Final answer
   x = 6,979,616.34